Publications and resources

Transpower regularly publishes a Transmission Planning Report (TPR) which details the grid asset capability over the next 15 years. ...

In 2018 Transpower launched Te Mauri Hiko, to start a discussion on New Zealand’s Energy Future. ...

This page contains maps, services, and diagrams relating to Transpower assets.

We have undertaken an investigation of the Value of Lost Load (VoLL) to inform our expenditure decisions and regulatory applications. ...

This 2017/18 Annual Review is an online, integrated report of our activities and their alignment to our six...

Auckland is changing. Rapidly. Roads, housing, technology, industry and electricity. ...

Shaping our draft proposal to the Commerce Commission for our third Regulatory Control Period (RCP3) depends on input from our stakeholders. We appreciate that many of you have shaped...

Tranpower's "Keys to Life" are our key safety expectations for Transpower staff and contractors. They are critical to individual safe work practices.

This Statement of Corporate Intent (SCI) is submitted by the Board of Directors of Transpower New Zealand Limited, in accordance with Section 14 of the State-Owned Enterprises Act 1986 (the...

On 2 March 2017, New Zealand experienced a major and complex power system event. The event resulted in the South Island power system splitting into two separate systems.